2647559 has 2 divisors, whose sum is σ = 2647560. Its totient is φ = 2647558.

The previous prime is 2647549. The next prime is 2647571. The reversal of 2647559 is 9557462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2647559 - 2⁸ = 2647303 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2647549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323779 + 1323780.

It is an arithmetic number, because the mean of its divisors is an integer number (1323780).

2^2647559 is an apocalyptic number.

2647559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647559 is an equidigital number, since it uses as much as digits as its factorization.

2647559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 2647559 is about 1627.1321396863. The cubic root of 2647559 is about 138.3402477149.

Subtracting 2647559 from its reverse (9557462), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2647559 in words is "two million, six hundred forty-seven thousand, five hundred fifty-nine".